1 files changed, 54 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/des/cbc_cksm.c b/openssl-1.1.0h/crypto/des/cbc_cksm.c
new file mode 100644
index 0000000..a7bf068
--- /dev/null
+++ b/openssl-1.1.0h/crypto/des/cbc_cksm.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include "des_locl.h"
+
+DES_LONG DES_cbc_cksum(const unsigned char *in, DES_cblock *output,
+                       long length, DES_key_schedule *schedule,
+                       const_DES_cblock *ivec)
+{
+    register DES_LONG tout0, tout1, tin0, tin1;
+    register long l = length;
+    DES_LONG tin[2];
+    unsigned char *out = &(*output)[0];
+    const unsigned char *iv = &(*ivec)[0];
+
+    c2l(iv, tout0);
+    c2l(iv, tout1);
+    for (; l > 0; l -= 8) {
+        if (l >= 8) {
+            c2l(in, tin0);
+            c2l(in, tin1);
+        } else
+            c2ln(in, tin0, tin1, l);
+
+        tin0 ^= tout0;
+        tin[0] = tin0;
+        tin1 ^= tout1;
+        tin[1] = tin1;
+        DES_encrypt1((DES_LONG *)tin, schedule, DES_ENCRYPT);
+        /* fix 15/10/91 eay - thanks to keithr@sco.COM */
+        tout0 = tin[0];
+        tout1 = tin[1];
+    }
+    if (out != NULL) {
+        l2c(tout0, out);
+        l2c(tout1, out);
+    }
+    tout0 = tin0 = tin1 = tin[0] = tin[1] = 0;
+    /*
+     * Transform the data in tout1 so that it will match the return value
+     * that the MIT Kerberos mit_des_cbc_cksum API returns.
+     */
+    tout1 = ((tout1 >> 24L) & 0x000000FF)
+        | ((tout1 >> 8L) & 0x0000FF00)
+        | ((tout1 << 8L) & 0x00FF0000)
+        | ((tout1 << 24L) & 0xFF000000);
+    return (tout1);
+}